Benjamin scaeles



(No Model.)

Patented Mar. 15,1887` E. w m W/mw @W @RTW m mf .b mf,

lNrrien STATES PATENT BENJAMIN SCARLES OF CLINTON, MASSACHUSETTS,ASSIGNOR TO THE CLINTON WIRE CLOTH COMPANY, OF SAME PLACE.

Loom-SHUTTLE.

SPECIFICATION forming part of Letters Patent No. 359,546, dated March I1887. Application filed July 28, 1886. Serial No. 200,303. (No model.)

To all whom it may concern:

Be it known that I, BENJAMIN SoARLns, of Clinton, county of Worcester,and State of Massachusetts, have invented an Improvement inLoom-Shuttles, of which the following description, in connection withthe accompanying drawings, is a specification, like letters on thedrawings representing like parts.

Prior to my invention shuttles employed in looms for weaving wire-clothhave been provided with cop-chambers to receive cops of wire, the saidchambers occupying, however, but a small portion of the cent-ral part ofthe shuttle, a great portion of the main body of the shutttle beingtaken to receive the devices f. body of the shuttle as a cop-chamber.

instrumental in drawing the wire from the center of the cop at one endand its delivery to the delivery-rolls.

In the shuttle herein described,as in my application Serial No. 208,599,filed July 2l, 1886, the chamber is of sufficient length to receive along cop containing a large amount of wire, Which is drawn from theinterior of the cop through an opening in a wall or plate located at oneend ofthe copchamber,and thereafter the 'wire ispassed about a sheave,the supporting pivot or axle of which is placed at an angle to thebottom of the shuttle,the wire, after passing partially about the saiddiagonally-placed sheave,being carried to a sheave at the rear wall ofthe shuttle,and from thence .across the cop'tothe front'wall of theshuttle,

the wire then being led out from the shuttle between usualdelivery-rolls, such location of the sheaves about which the wire is ledenabling me to utilize a greater portion of the The larger thecop-chamber, the greater quantity of wire which can be formed into avcop and placed therein.

Theshuttle herein to be described is an improvement upon that describedin my said application,in that I have provided means for automatcallyvarying the tension on the wire as the latter is drawn from theinterio'rof the cop.

The shuttle herein to be described also contains within its cop-chambera cop-holding plate, which is preferably corrugated or notched to aid inpreventing the cop from slipping longitudinally in the said4 chamber,the

plate also aiding in keeping the outer coils of the wire in shape. Morepower is required to draw the wire from the interior or center of thecop when the wire is first started from the center of the cop, where thecoils are small, than after the wirehas been partially unwound; or,inother words,the power required to draw the wire from the cop decreasesas the coils increase in diameter or approach the outer layer 0r coil ofwire forming the cop. This variation in the delivery of the wire fromthe shuttle to the fabric must be counteracted by the tensionmechanism,in order to gain uniformity of product and maintain uniformselvages.A

In the invention herein to be described the hole through which the wireis led as it passes from the cop to the diagonally-placed sheave is madeto present a convexed 0r bulged surface at that side of the wall nearestthe delivery end of the cop, so that as the cop is unwound the wire isgradually bent more and more about the said conveXed or bulged surface,thus gradually increasing the friction upon the wire, which produces anincreased tension, the increase of tension being gradual as the cop isunwound,to thus compensate for the decreasing resistance of the coils oflarger diameter as they leave the cop.

By the employment of the convcxed or bulged friction-surface toconstitute a tension device, it is possible to make .the hole throughthe partition in line with the longitudinal center of the cop of smallerdiameter than heretofore, as when a conical hole is employed,

and by reason of the convexed or bulged surface the wire is straightenedbefore entering the said hole, and hence\it may be delivered from thesaid hole to the sheave more freely and without liability of beingcaught or clogged by gradually reducing coils in the wire, as is now thecase when the hole throughwhich the wire is led is conical.

Figure 1, in top view partially broken out, shows a shuttle embodying myinvention. Fig. 2 is a vertical longitudinal section of Fig. l in theline 0c, the cop being omitted, the said figures showing, however, thewire as passing straight through thecentral opening of the tensiondevice. Fig. 3 is a cross-section ICO of Fig. 1 in the dotted line w',looking toward the left; Fig. 4, a section of Fig. l in the dotted linew, chiefly to show the face of the tension device. Fig. 5 is a detail tobe referred to, it showing the cover-holding spring at one side of thecop-chamber. Fig. 6 is a detail showing the wire bent about the tensiondevice, the tension being nearly at its maximum; and Fig. 7 shows thespring g separately.

The shuttle-body A, preferably of metal, has a long chamber extendingsome distance in each way from its center in the direction of itslength, so as to receive a long cop, C, wound so as to be delivered fromits center at one end, as common in shuttles for use in wireweavinglooms. The shuttle-body contains a division-wall, B, which serves thefunction of a tension device. This wall has a central opening, 2, whichfor a part of its length is nearly cylindrical; but at its inner facethe wall about the said opening is convened or bulgcd, as at 3, topresent afriction-surface, over and against which the wire 4 will begradually bent and drawn as layer after layer thereof is pulled out fromthe interior of the cop C.

In Fig. 2 the wire is represented as passing through the central part ofthe hole 2 without touching the convexed or bulged friction-surface 3,the wire being at such time drawn from the coils of smaller diameter, orthe coils at and near the longitudinal center of the cop; but as thewire is gradually unwound from the interior of the cop and the coilsincrease in diameter, the resistance to unwinding decreases, and tocompensate for this decreasing resistance the wire coming from the coilof increasing diameter is gradually bent about the convened or bulgedsurface 3, the wire touching a greater and greater extent of the saidsurface, thus increasing the tension or drag upon it and insuring`uniform delivery.

The shuttle body receives within it the sheave c, mounted upon a pivotor axle, c2, held by the sheave-block c', (shown as attached to theshuttle by the screw 5,) the said pivot c2 being placed diagonally withrelation to the bottom of the shuttle, as in my said application.

From the sheave c the wire is led through the hole 6 and about thesheave d on the stud d', erected on the cover D for the shuttlebody, thewire 4 being led from the sheave d between the delivery-rolls e e, thesheaves c and d and the delivery-rolls being substantially as in my saidapplication, and operating in like manner to insure uniform bending ofthe wire in both directions of movement of the shuttle.

The cover D is herein shown as pivoted at one end, as at D', on a plate,D2, in turn pivoted at D, the ilanged edge S of the cover being bent atright angles, so as to enter the shuttle, as at the left of Fig. 3 andas shown in Fig. 5. This flanged edge 8 is slotted, as at 10, to engagea pin or projection, 12, in the shuttlebody, to thus keep the cover Dfrom being accidentally opened, the said cover also having a lug, 13,which is engaged by the stud 14 (see Fig. l) of aspring-latch orcoverlocking device, 15, which acts to keep the cover from longitudinalmovement, thus keeping the hooked or slotted part 10 of the cover inengagement with the stud or pin 12.

The cover may be moved longitudinally to be opened whenever the lockingdevice 15 is pulled outward to remove the projection 14 from the lug 13.

Any other equivalent or well-known form of device to lock the cover maybe employed instead of those shown.

The interior of the shuttle-body is provided with a notched or toothedplate, f, upon which the cop C rests, the teeth of the said plate (shownin Figs. 2 and 5) being preferably turned in opposite directions, tothus engage and hold the wire-cop against longitudinal movement in theshuttle.

The shuttle-body within the cop-chamber has a spring-presser, g2,serrated at its surface and supported upon spring-arms g. a curvedspring, g', (shown separately in Fig. 7 and in section, Fig. 3,)inserted between the inner side of the presser-plate and the inner wallof the shuttle, normally acting to move the presser-plate against thecop. This spring g is so shaped and the arms r/ are so attached to theshuttle-body and the presser-plate that the latter is kept pressedagainst the cop and is enabled to adapt itself to even a tapering cop,for the plate held as described may move unequally at its opposite endstoward or from the cop. The bulgcd tension-surface herein shown isclaimed in a shuttle, and I have described a similar surface in anotherapplication, Serial No. 220,584, filed December 3, 1886, Vforimprovement in machine for the manufacture of wire-netting.

I claim- 1. The shuttle-body provided with a tension device composed ola block or wall hav ing a passage through it and having a convexed orbulgcd surface, over which are drawn the coils of material coming from acop being unwound from its center outward, the material coming in moreextended contact with the said convexed or bulgcd surface as the cop isbeing unwound, thus producing an increasing friction to equalize thedelivery of the material from the shuttle, substantially as described.

2. The shuttle-body, the presserplate, and arms f/,to support it,combined with thespring g,inserted between the said presser-plate andshuttle-body, substantially as described.

In testimony whereofl have signed my name to this specification in thepresence of two subscribing witnesses.

BENJAMIN SCARLES.

\Vitnesses:

G. W. GREGORY, F. CUTTER.

ICS

IIO

